新一代顯示介面之驗證與測試. Brian Chen 太克科技應用工程師

Transcription

1 新一代顯示介面之驗證與測試 Brian Chen 太克科技應用工程師

2 Agenda HDMI Overview and updates MHL Overview and updates DP overview and updates Tektronix Solution overview Additional resources

3 HDMI High Definition Multimedia Interface

4 Overview of HDMI Problems with the legacy display technologies Unnecessary D to A and A to D components Device resolution increases, display brightness reduced No content protection What is HDMI? High Definition Multimedia Interface Connection standard for consumer electronics Uncompressed digital video and audio content interface Digital Content protection Multi channel audio Single cable Cost effective

5 HDMI Basics

6 HDMI Technology and solution status Over adopters till date Source: HDMI LLC HDMI Expands Footprint HDMI has made inroads into PC industry New computer platforms have HDMI interfaces Hand held devices with miniature HDMI devices New connectors Type C and Type D introduced HDMI Forays into Automotive Type E Year D Year Still camera Advertising billboards HDMI NOW Truly Single Digital Interconnect for uncompressed Audio/Video Ethernet up-link Audio up-link HEAC ( A R C) HEAC Source HEAC Cable Ethernet down-link HEAC Sink

7 HDMI Market overview Source: HDMI Forum

8 HDMI Devices take rate 2.2B HDMI devices sold by 2011 Source: HDMI Forum

9 HDMI Status Complementing/Competing MHL ( Mobile High Definition Link) Competing Technologies Wireless HDMI ( Wimedia, Wireless USB etc) WiHD ( 60GHz LOS)!!! WHDI (5GHz) DP

10 Tektronix HDMI 1.4b solution- Approved in CTS 1.4b DPO/DSA/MSO Real Time Oscilloscopes AWG5K/B or AWG7K/B Arbitrary Waveform Generators DSA8200 Sampling Scope with i-connect software Common Set of test equipment for HDMI and HEAC HDMI Fixtures: 1. Type A( TF-HDMI-TPA-S/-STX) 2. Type C(TF-HDMIC-TPA-S/-STX) 3. Type D( TF-HDMID-TPA-P/-R) 4. Type E(TF-HDMIE-TPA-KIT) 5. HEAC Fixtures(TF-HEAC-TPA-KIT) Probes and accessories HDMI Probes HEAC Probes HDMI Accessory Kit GAME Changer - HDMI Protocol Analyser

11 Changes in HDMI standards body Source: HDMI Forum

12 What is HDMI Forum Source: HDMI Forum

13 HDMI Forum Charter Source: HDMI Forum

14 Tektronix and HDMI Forum 80+ companies in the HDMI forum as of date. source HDMI Forum Tektronix is member of this HDMI Forum. Actively participating in weekly/monthly calls and face-face meetings Tektronix s U.N.Vasudev is co-chair for HDMI forum test sub-group HDMI Forum working on next version of HDMI specifications. Target 2013 Q3 Specification CTS 2013 Q4

15 Possible HDMI 2.0 features Uses same Cat 2 Cable and HDMI 1.4b connector Support 4K 2K 4:4:4 60 Hz 594Mhz Support 4K 2K 4:2:0 297Mhz Direct Attach device support

16 HDMI 2.0 Source Testing-Advanced information

17 Source Testing Most Source tests are likely to be same as HDMI 1.4b but for Eye Diagram test. Source Eye Diagram test is measured at TP2_EQ. TP2 is the signal after passing along a worst cable. Worst cable has worst attenuation and skew of 112ps.

18 Source Eye Diagram Test Include Reference Cable Emulator (s4p) and Reference Cable Equalizer Tektronix Oscilloscope DPO/DSA/MSO70000 Series 16GHz Diff Clk Clk + Clk - SE Data Data + Data - SMA Pair Cable HDMI Source HDMI Plug Fixture with EDID Emulator

19 TP2 Source Eye for HDMI 2.0 6G signal Single End Input eye rendered at Tek lab

20 HDMI 2.0 Sink Testing- Advanced Information

21 Requirement for Signal generation Cable Emulation and Skew by Hardware Tektronix Software Cable Emulation

22 Sink Test Tektronix AWG7002A x 2 Tektronix AFG3000 (Synchronize two AWGs) Tektronix Oscilloscope DPO/DSA/MSO70000 Series (Synchronize two AWGs and Automation Test) Include Reference Cable Emulator (s2p) 112ps Delay Line (Emulate Cable Skew) SMA Pair Cable HDMI Plug Fixture HDMI Sink

23 TP2 Signal with New AWG70002A Direct Synthesis capability to add impairments in Software Skew effect Cable emulator effect Delay effect TP2 Eye after applying Cable Equalizer

24 Tektronix HDMI 2.0 Solution Tektronix HDMI 2.0 Solution will be available aligned to the CTS announcement from the new HDMI Forum. Full Source, Sink, Cable and Protocol Solution including probes, Fixtures. Support for HDMI 1.4b CTS which is likely to be a pre-requiste for HDMI 2.0 testing. Contact local Tektronix sales team for early interaction on our HDMI 2.0 solution.

25 MHL Mobile High Definition Link

26 MHL An Introduction Why MHL interface? Application

27 MHL Introduction V Bus Mobile HD Link (MHL) technology is a low pin count HD audio and video interface that connects portable electronics devices such as mobile phones, digital cameras, camcorders and portable media players, to HDTVs. The technology allows mobile devices to output digital 1080 Full HD resolution via the existing mobile connector without the real estate and cost of another dedicated video connector. Together with an MHL-to-HDMI bridge, the MHL-enabled mobile device becomes a fully compliant HDMI source and can connect to the television s standard HDMI input port.

28 MHL Introduction MHL Consortium was formed in Sept 2009 with the following founding members: - NOKIA - SAMSUNG - Silicon Image - Sony - Toshiba The Specification 1.1 version was announced in Q12011, Specification 1.2 in Dec 2011, Specification 2.0 in Feb 2012 and Specification 2.1 NOW. The Consortium released CTS 1.1 version in June 2011, CTS 1.2 in Jan 2012, CTS 2.0 in Sept 2012 and CTS 2.1 is round the corner. COMPLETE TEKTRONIX SOLUTION APPROVED in CTS1.1, CTS 1.2 and CTS 2.0.Working on approval for CTS 2.1 solution Tektronix is a Contributor adopter and actively involved in defining the CTS 2.1. Source: MHL 1.2 specification document

29 MHL CTS 2.1 features and next steps New test method for Clk Jitter and Data Eye Diagram ( will be Single ended connection) Direct Attach devices support. New tests for Cable testing Cable Eye Diagram Minimum Voltage level Sink testing with and without Cable emulator effect NEXT Steps MHL Consortium working on next version MHL specifications. Data rate???

30 Tektronix MHL Solution: Complete Solution Aligned to CTS2.1 Announcement Tektronix MHL Physical Layer Tx test setups are easy to use and automated - Simple test setups common for most tests - Vterm provided by scope itself - MHL Fixtures available from our Fixture partner Wilder Technologies Tektronix MHL Physical Layer Rx test setups are easy to use. - TRUE MHL SIGNAL Generation as there is no need for external combiners/filters - No need for external ISI boards as we leverage our AWG direct Synthesis Capability with common setups for Sink and Dongle testing Tektronix introduces an innovative combined solution for Physical Layer Testing and Protocol Testing: - Providing seamless link between PHY and Link layer testing - An economical MHL test solution o ONE BOX solution for PHY and Protocol testing - Easy access to legacy P/A/V data format Tektronix also offers complete MHL solution with: - DSA8200 or Equivalent Sampling scope with 80E03/04 and I-connect Software for MHL Cable testing (performed manually using MOIs) - Low Bandwidth Oscilloscopes - Keithley Source Meter (Now part of Tektronix) - Programmable Power Supply and - Digital Millimeter

31 DisplayPort 1.2 and edp Testing Update

32 DisplayPort 1.2 Spec Update Agenda DisplayPort 1.2 Overview DisplayPort Transmitter Testing What s New: T2, TP3, TP3EQ Physical Layer Test Overview for DP1.2 Manual measurements / DPOJET / SDLA CTLE required in Rx DP-AUX: Control DUT parameters Controls ALL TX. RX devices without vendor-specific control SW Test Automation: Full Main Link testing with DP12 Automated tool set DP 1.2 Tx: Including Single-Ended and Diff Measurements (Intra-Pair Skew, AC Common Mode) Using RF Switch Integration Improved Debug Tools DisplayPort Sink/Receiver Testing BSA125C configurations towards Rx testing Jitter Impairment profile and observation times edp testing for edp 1.4 specification Reference: VESA DisplayPort PHY Compliance Test Specification Version 1.2

33 DisplayPort 1.2 Overview The DisplayPort PHY Compliance Test Specification establishes a test regimen to determine compliance of DisplayPort devices - segmented into: Source Receiver Copper Cable Hybrid devices Tethered devices Test Point Definitions TP1: at the pins of the transmitter device. TP2: at the test interface on a test access fixture TP3: at the test interface on a test access TP3_EQ: TP3 with equalizer applied. TP4: at the pins of a receiving device

34 DisplayPort CTS1.2b Source Test Suite 1. EYE Diagram 2. Non Pre-Emphasis Level Verification 3. Pre-Emphasis Level Verification and Maximum Differential Pk-Pk Output Voltage 4. Inter-pair Skew 5. Intra-Pair Skew 6. Differential Transition Time 7. Single Ended Rise and Fall Time Mismatch 8. Overshoot and Undershoot Test 9. Frequency Accuracy 10. AC Common Mode Noise 11. Non ISI Jitter Measurement 12. Total Jitter and Random Jitter Measurement 13. Unit Interval 14. Main Link Frequency Compliance Stability 15. Spread Spectrum Modulation Frequency 16. Spread Spectrum Deviation 17. df/dt Spread Spectrum Deviation HF Variation 18. Dual-mode TMDS Clock (if supported) 19. Dual-mode EYE Diagram Testing (if supported) DUT Configuration 1. Bit Rates: RBR, HBR or HBR2 2. Patterns: D10.2,PRBS7, COMP, PLTPAT,PCTPAT 3. FFE (Pre-Emphasis): 0dB, 3.5dB, 6dB, 9.5dB 4. Output Levels: 400mV, 600mV, 800mV, 1200mV 5. SSC (Spread Spectrum): On/Off 6. Post-Curser2: Level 0,1,2,3 7. Lane Width, 1,2,4

35 Eye Diagram Test using Eye Compliance Pattern An Eye diagram test for 800mV, 0dB pre-emphasis at TP2,TP3, TP3-EQ.

36 DisplayPort 1.2 CTLE Properties 1.2 CTS requires adaptive application of one of three reference equalizers to the far end signal, to find a passing condition.

37 DisplayPort Auxiliary Channel Controller (DP-AUX) Why use Aux channel controller in physical layer testing? HPD Aux Channel Speeds Up Test Time - No User Interaction is Required to Change Source Output Signal or Validate Sink Silicon State or Error Count No Need to Learn Vendor-specific Software - A Single GUI Supports All Vendors View & Log Decoded AUX Traffic and Hot Plug Detect (HPD) Events from the Device under Test to the DP-AUX DisplayPort AUX Controller Ability to Read and Write DPCD Registers Supports Debug Activities Tektronix DP-AUX can serves as a DP1.2 Sink - Enables source to transmit the required patterns for testing.

38 Automation: DisplayPort testing is a large task! Combination Parameters For DP1.2 Testing Data Rate - 3 Lanes - 4 Pre-Emphasis Voltage Swing Post Cursor2 SSC Patterns Test - 4 Levels - 4 Levels - 4 Levels - 2 Levels(SSC On and Off) - 5 Supported Patterns Waveforms (SSC, 4 Lanes Possible Combinations) Eye Diagram Test 80 Pre-Emphasis Test 240 Non-Pre-Emphasis 32 Total Jitter 80 Combination of Tests 1. Differential Tests 2. Single Ended Tests ~432 Acquired signals for DP1.2 Normative Measurements per lane. X4 lanes results in 1728 Automated Acquisitions per DUT.

39 TekExpress DisplayPort 1.2 Automation Comprehensive Display Port Version 1.2 Physical Layer Conformance and Compliance Verification Tool All Core DP1.2 measurements Keithley RF Switch and DP-AUX fully automated solution. Selected measurements can be applied across all test permutations (SSC,CTLE s, swing, rates, preemphasis, etc.) translates to 1728 measurements. DP12 will provide full user intervention free, automated testing. This is the killer value proposition. Factory Automation API for full product control in silicon automation systems. Complimentary Fixtures and Compliance Interconnect Channel HW defined by VESA make this package a full customer solution with no compromises.

40 DisplayPort 1.2 Acquisitions DP1.2 Various signal interconnect methods are supported. Direct TCA (SMA input) on user selected channels. Differential Probe (P7313SMA) inputs for true 4 channel concurrent interconnect. (No single ended measurements) 24:4 Keithley RF Switch allows fully automated control of all 8 single ended inputs for hands free comprehensive testing. Test Patterns Automatic verification of test patterns (which can be disabled) ensures the correct patterns are used for the correct test under manual operation.

41 Conventional Display Port Fixtures + CIC Partnership with Wilder Technologies to design and channel high performance DP fixtures Wilder TF-DP-TPA-PRC fixtures and CIC and fixtures available directly from Tektronix

42 DisplayPort 1.2 Sink (Rx) Test Overview Receiver testing is performed with a Tektronix BSA125C BertScope and Wilder HBR2 ISI Channel. BER observation times range from 37 seconds 10.5 minutes depending on the data rate and jitter frequency being tested. e version 1.2 CTS outlines 17 Tx validation tests which are typically evaluated with a 12.5GHz or higher bandwidth oscilloscope.

43 DisplayPort 1.2 Sink (Rx) Test Observation Time Four Principal Test Frequencies at 2, 10, 20 and 100 MHz SJ

44 BertScope Receiver Test Solution Typical Configuration BertScope BSA85C Option STR DPP125A (no 4T needed) BSA12500ISI DP-AUX TF-DP-CIC-C1 Wilder DP 1.2 ISI Board High End Configuration To DUT

45 DisplayPort 1.2 -High end BeRTScope configuration BSAITS125 generates multiple, fixed selections for ISI Use BERTScope DPPB or DPPC to generate low pass filter to fine tune ISI On BSAITS GUI, you can simply dial in the amount of ISI needed and DPP and BSAITS will adjust to generate requested ISI Can automate calibration when using BSAITS with DPP Can precisely tune ISI at all data rates Can generate additional ISI to test margin of DUT

46 DisplayPort 1.2 -High end BeRTScope configuration RBR ISI created using BSAITS and DPP125B

47 Embedded Display Port-eDP Option EDP is designed to provide component and system designers with a comprehensive verification and debug solution the latest Embedded DisplayPort Specification 1.4. Using the familiar DPOJET look and feel the user can select the setup based on their specific measurements requirements. In addition, as the 1.4 specification allows the data rate to be anywhere within a range of speeds from RBR to HBR2 rates opt EDP will provide the dynamic mask generation required to ensure proper testing

48 Embedded Display Port-eDP Typical connection edp source measurements: Test Eye Diagram Test Test Inter Pair Skew test Test Non-ISI Jitter Measurements Test Total Jitter Test Deterministic jitter Test Random Jitter Test Main Link Frequency Stability Test Spread Spectrum Modulation Frequency Test Spread Spectrum Modulation Deviation

49 Embedded Display Port-eDP Oscilloscope Requirements Option EDP requires a DPO/DSA/MSO 70K scope running firmware version or higher and DPOJet version 6.0 or higher. For customers testing RBR (1.62 Gb/sec) and HBR (2.7 Gb/sec) a minimum bandwidth of 8Ghz is required. For customers testing HBR2 (5.4 Gb/sec) a minimum 12.5GHz BW is required. Probing For customers testing RBR (1.62 Gb/sec) or HBR (2.7 Gb/sec) Qty 4 P7380 or P7380SMA are required if testing more then two lanes at one time. For customers testing HBR2 (5.4 Gb/sec) and HBR (2.7 Gb/sec) and RBR (1.62 Gb/sec) Qty 4 P7313 or P7313MA are required if testing more then two lanes at one time. An optional edp fixture is available on the Tektronix PAL:TF-EDP-TPA-PRC

50 Complete Tektronix DisplayPort Instrument Portfolio Receiver/Sink Tests (Characterization) Receiver Silicon characterization and compliance testing capability to 26Gbps BSA125C with JMAP and SSC and HW Options DPP 125A and CR125A provide support for future bit-rates (12-26G) with a unique portfolio of Scope and Bert combined features. DP Channel Tests Source and Sink electrical channel performance, Crosstalk, Impedance and return loss. High Dynamic Range instrument Cable Tests Cable crosstalk, skew and frequency domain measurements, sdd21, sdd11. DSA E10 TDR Sampling Module for DSA8200 Sampling Scope S-Parameter Analysis Software 80SICON Software DSA8300 4X 80E08 TDR Sampling Module for DSA8300 Sampling Scope Transmitter/Source Tests Signal timing stability and SSC analysis, Transmitter AC parametric, Jitter, Amplitude. DSA71254C DPOJET Jitter Analysis software SMA Adapters TCA-SMA 2 per scope Differential SMA Probe P7313SMA (optional) + DP-AUX controller + DP12 (Sw Option)+Option edp

51 High-Speed Serial Data Test Solutions Design Verification Compliance Test Tx + + GbE Interconnect MHL + + Rx Real-time Scopes System Integration Digital Validation & Debug Logic Analyzers Transmitter Testing Receiver Test Margin Testing Probing Fixtures Interconnect Test Arbitrary Waveform Generator Sampling Scopes Compliance Test Compliance Test Software

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